Formation of [3]catenanes from 10 precursors via multicomponent coordination-driven self-assembly of metallarectangles

Shijun Li; Jianying Huang; Timothy R Cook; J Bryant Pollock; Hyunuk Kim; Ki-Whan Chi; Peter J Stang

doi:10.1021/ja3118812

Formation of [3]catenanes from 10 precursors via multicomponent coordination-driven self-assembly of metallarectangles

J Am Chem Soc. 2013 Feb 13;135(6):2084-7. doi: 10.1021/ja3118812. Epub 2013 Feb 4.

Authors

Shijun Li¹, Jianying Huang, Timothy R Cook, J Bryant Pollock, Hyunuk Kim, Ki-Whan Chi, Peter J Stang

Affiliation

¹ College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, P. R. China. l_shijun@hznu.edu.cn

PMID: 23351118
DOI: 10.1021/ja3118812

Abstract

We describe the formation of a suite of [3]catenanes via multicomponent coordination-driven self-assembly and host-guest complexation of a rectangular scaffold comprising a 90° Pt-based acceptor building block with a pseudorotaxane bis(pyridinium)ethane/dibenzo-24-crown-8 linear dipyridyl ligand and three dicarboxylate donors. The doubly threaded [3]catenanes are formed from a total of 10 molecular components from four unique species. Furthermore, the dynamic catenation process is reversible and can be switched off and on in a controllable manner by successive addition of KPF(6) and 18-crown-6, as monitored by (1)H and (31)P NMR spectroscopy.